NVIDIA GeForce GTX 780M 's Advantages
Larger VRAM bandwidth (160.0GB/s vs 48.00GB/s)
896 additional rendering cores
AMD Radeon 550X Mobile 's Advantages
Released 4 years and 11 months late
Boost Clock has increased by 61% (1287MHz vs 797MHz)
Lower TDP (50W vs 122W)